concurrent design facility (cdf)...cdf-concept • concurrent design facility (cdf) is an...
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ConcurrentDesignFacility(CDF)
Preparedby:MohamedEl-HadyKeshk
PhDstudentinEmbeddedSystemLab.
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CDF-Concept
• Concurrent Design Facility (CDF) is an environment where engineers of different specialties come together to perform conceptual design for a satellite project.
• It is designed for the quick and efficient conceptual design of space systems ensuring consistent and high-quality results in a much shorter time.
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CDF-ConceptInWhichPhase….?pre-phaseAorLevel-0assessmentstudies
Ø assessthetechnicalandfinancialfeasibilityoffuturespacemissions.
Providing…..?• newmissionconceptassessment• spacesystemtrade-offsandopOonsevaluaOon• newtechnologyvalidaOonatsystem/missionlevel• payloadinstrumentconceptualdesign• reviewsofindustrialphaseAstudies• scienOficrequirementsdefiniOonandconsolidaOon• educaOonandtraining
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CDFVs.TradiOonalSystemEngineering
hTp://www.dlr.de/irs/en/desktopdefault.aspx/tabid-11079/#gallery/27740
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CDF-whichAgenciesareusingit…?• ESA
– ConcurrentDesign Facility (CDF) at European SpaceResearchandTechnologyCentre(ESTEC)(1998)
• NASA– CollaboraOve Modeling for Parametric Assessment of SpaceSystems(COMPASS)(unofficiallyin2000)
– Concurrent Mission and Systems Design at NASA GlennResearchCenter(officially2006)
• AgenziaSpazialeItaliana(ASI)• CentreNaOonald’EtudesSpaOales(CNES)• JAXA-MissionDesignCenter• GermanAerospaceCenter(DLR)-ConcurrentEngineeringFacility• EgypOanSpaceProgram(ESP)–ConcurrentDesignCenter(2012)
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CDF-Team• Prof. Yousry El-Nahhas (ESP Chairman)
• Eng. Osama El-Sayed (Team Leader)
• Eng. Yousry Solaiman (Network Engineer)
• Eng. Mohamed El-Hady (Software Engineer )
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CDF-Elements• TheFacility:
Ø The room itself. Ø IT and communications hardware. Ø the specialist space mission design software that enable engineers
to design individual elements of a complex mission.
• TheSo/ware:Is the design database software which automatically links the design of the individual elements of a mission into a coherent system (MS Excel)• TheMethodology:The process for efficiently coordinating the design activities of Engineers in a concurrent design environment. These three elements of the CDF enable a space concepts to be quickly and efficiently evaluated from technical, financial and programmatic points-of-view
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CDF-Architecture
Server
Mission Analysis
System Engineer
Space Environment
Programmatic
PLCHS
PCDHS
Communication
Data Applications
ADCS
Power
Thermal
Mechanisms
Structure GS & Oper.
Mission Simulation
Space Environment
Mission Analysis
System Engineer
ADCS
Power
GS & Oper.
Thermal
PLCHS Mission Simulation
PCDHS
Structure
Communication
Programmatic
Mechanisms
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CDF-Equipment
Ø The CDF room contains 13 desktops, 2 Workstations and 1 server.
Ø Each subsystem is capable of showing its data on the screen and the session administrator can switch between various subsystems.
Ø There is1 projector.
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CDF-Layout
Mission Analysis
ADCS PLCHS
Session Admin + Server
Communication
System Engineer
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CDF-Sohware• Software is a set of Excel macros and visual basic codes.
Ø included interaction between various software packages to improve productivity during sessions.
• The system is capable of interfacing with STK, MATLAB and CAD software packages.
• The software allows to introduce many parameters for the system and summarize necessary data for the most important trades.
• requirements tracking. All requirements are entered to database via a
specialized interface on an Excel sheet.
• The interface allows to initiate, edit, confirm or validate requirements. User level access is controlled, hence subsystem engineers only have access to requirements from their subsystem.
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CDF-Tools• One of the problems in concurrent design is to back track to a particular
decision point, or understand why a particular decision was taken. – A simple version control system is implemented.
• To allow efficient exchange of parameters and modification of designs during session. – subsystem sheets are linked directly with engineering tools used at the
CDF. – Structures Subsystem à CAD Tool – Mission Analysis, Power and Telecommunications subsystems à STK – Mission Analysis à MATLAB – Some specific models are being implemented in MATLAB and data are
being exchanged by means of an Text file.
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CDF-GUI
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CDF-GUI-MATLAB• ImportData
– Textfile(.txt)àMATLABworkspace
• ExportData– MATLABworkspaceàTextformat(.txt)
• Simulate– ImportMATLABfile(.m)andrunthisfile
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CDF-SheetExample
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CDF-ValidaOon
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CDF-Archive
Master
Mission Analysis
PLCDHS
Structure
ADCS
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CDF-Archive
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CDF-BenefitStudy Quality The systematic approach to the design process helps ensure that the results are of a consistently high standard.
Efficiency ESA and other CDF operators report a reduction in assessment study costs by a factor of two and elapsed time by a factor of four. Reduced Risk Examining the entire system at an early stage helps avoid surprises in the implementation phase of the project. Promote Collaboration Teams of engineers from different organizations and countries are able to start work together on real projects quickly, build collaborations and profit from each other's strengths. Stimulating Innovation New ideas and concepts can be refined, elaborated and assessed from scientific, technical and business points-of-view and take them to the next level of maturity.
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Q & A Thank you for your attention